EP0983413B1 - Anti-theft device for locking container or lorry doors - Google Patents

Description

The invention relates to an anti-theft device for blocking doors of a container or a truck, comprising two vertical closing bars fitted with hooks penetrating the upper and lower crosspieces and an operating and closing handle.

We have already proposed and made various devices to block the doors to prevent theft, such as locks on handles or stirrups with lock blocking the bolt bars. In use, these devices have been found ineffective, although of good quality, as it only took a few minutes to cut the support of the devices concerned.

In addition, there is a known device intended to cover and protect cremone bar cams; a part is integral with the lower crossmember and a plate covering the cremone bolts externally, is articulated thereon, the maintenance being ensured by locking means located on the side opposite the articulation of the movable part (patent EP-337886 and GB-2,062,084).

The problem encountered with this device is the overflow of the template of the container because the plate projects beyond the rods.

In addition, this device makes it impossible to stack containers overstepping the gauge, especially on container ships where stacking is done in slides to the exact size of the containers.

Another L-shaped system has been proposed (patent FR-2 265 183) aimed at blocking the doors of containers installed on a wagon or on the ground. The container rests on the base of the L and the vertical part comes to block the doors. The disadvantage of such a device is that it is completely independent of the container and loses its effectiveness as soon as it is lifted slightly the back of the container.

The invention aims to create a new device not having these disadvantages.

It therefore relates to an anti-theft device for blocking the opening. a container or a truck with at least one door or curtain, the locking device comprising means integral with the lower cross member, receiving a moving part provided with means for blocking the door and a lock actuated by a lock for locking the moving part in the receiving means, said means for receiving the moving part comprising a box fixed inside the cross member and provided in its internal wall at least one cavity for the insertion of a lock locking member and the moving part comprising a part which slides into the box, the locking member cooperating with the cavity and being controlled by a security lock, characterized in that it comprises two locking members parallel to each other and in that the lock is provided on its rear face of two crank pins, each attacking one of the locking members each provided a notch to print them two equal horizontal movements and opposite directions.

A particularly effective arrangement is that the means door blocking consists of an L-shaped part, the part of which vertical prevents opening of the door leaves and the horizontal part constitutes the upper part of the moving part and therefore becomes inaccessible when it is recessed and locked.

• la Fig.1 est une vue en perspective d'une première variante du dispositif de l'invention;
• la Fig.2 est une coupe de la pièce mobile selon la ligne A-A;
• la Fig.3 est une coupe de la pièce mobile selon la ligne B-B de la Fig.2;
• la Fig.4 est une vue de face de la pièce mobile,
• les Figs.5 et 6 sont des vues de face et de profil du verrou dans la première variante,
• la Fig.7 représente une deuxième variante du dispositif vue en coupe horizontale selon C-C de la Fig.8;
• les Figs.8 et 9 sont respectivement une vue de face de la pièce mobile de la deuxième variante, et une coupe selon D-D de la deuxième variante;
• la Fig.10 est une vue schématique d'une variante de la partie supérieure de la pièce mobile;
• les Figs.11 et 12 sont des vues en perspective d'une troisième variante du dispositif suivant l'invention, et
• la Fig.13 est une vue en élévation du mode de réalisation du verrou du dispositif de la Fig.11.

The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended drawings, in which:

• Fig.1 is a perspective view of a first variant of the device of the invention;
• Fig.2 is a section of the moving part along the line AA;
• Fig.3 is a section of the movable part along the line BB of Fig.2;
• Fig.4 is a front view of the moving part,
• Figs. 5 and 6 are front and side views of the lock in the first variant,
• Fig.7 shows a second variant of the device seen in horizontal section along CC of Fig.8;
• Figs.8 and 9 are respectively a front view of the movable part of the second variant, and a section along DD of the second variant;
• Fig.10 is a schematic view of a variant of the upper part of the movable part;
• FIGS. 11 and 12 are perspective views of a third variant of the device according to the invention, and
• Fig.13 is an elevational view of the embodiment of the lock of the device of Fig.11.

In FIG. 1, the rear face of a container has been designated by 1, by 2 and 3, the bolt bars, by 4, the door seal and by 5, the lower cross member.

In this cross, in the area preferably between the cremones, we cut a rectangular hole 6, and we inserted and welded a parallelepipedic box 7 provided vertically on the inside of the upper face two blind holes 8 for inserting a latch 9 (Fig. 2) in one piece mobile.

The moving part (Figs 2,3,4) has a parallelepiped part which fits exactly into the box 7, and the upper part of which is made up by the base 11 of an L-shaped piece 10, the vertical part 12 comes to block the doors. A preferred position of the box 7 is in the axis of the container between the rods 2.3.

The remaining part 13 of the moving part has a first recess cylindrical 14 intended to receive a lock 15 and drilled in a part front of the moving part, and a second oblong recess 16 in which opens first and pierced in part 13 of the moving part located under the horizontal branch 11 of the L-shaped part. This second recess is intended for receive the lock 9. The latter consists of a counterweight 17 having at the upper part two locking pins 18 placed directly above two holes blind 8 and in which a groove 19 has been milled on the one hand, and drilled on the other hand, in the lower part two holes 20,21 intended to receive springs 22, (Fig.2).

The lock 15 provided with an anti-drilling device 25 makes it possible to maneuver a rotating disc 23, the disc being provided with a pin 24 engaging in the groove 19 and thus making it possible to operate the lock 9 to unlock the movable part, the lock being always engaged in the holes 8 thanks to the action of the springs 22.

The second embodiment (Figs. 7,8,9) valid in particular for a truck or for a container platform consists of the moving part engaging in the box 7 can be reversed so that the L-piece 10 is directed downward so as not to interfere with truck loading operations or potting the container on a container chassis. The advantage of this position is not to put the locking device in the cabin of the truck which, by its mass, could be dangerous.

For this purpose, blind holes 32.33 intended to receive the latches, are drilled in the side walls of part 7 and offset in part height and other of the median plane of the box or oblong extending vertically.

The moving part includes a first recess 26 for the lock, drilled in the axis of the front of the moving part, two 30.31 cylindrical locks provided with notches 34.35 are housed in two other recesses 28.29 drilled in the side walls of the moving part and offset in height with respect to the axis of the first recess and opening into the latter, so that after turning 30.31 locks can still be received within side holes 32.33.

The lock 27 is in this case provided with two pins 37,38 which attack the two locks by engaging in the notches 34, 35 and impose on them horizontal movements in opposite directions. It is equipped with a device anti-drilling 39.

In the event that a curtain closure is involved, it is expected that the end part 36 of the L-shaped part is bent inwards to block the curtain handle by engagement above the handle if it protrudes or in the handle if it is hollow.

The set is designed to withstand bad weather.

Thus, the holes 8, 32, 33 for receiving the locking members do not not open, the locks 9,30,31 are provided with seals and the part mobile is made of stainless steel, so the L-shaped part is difficult to sawing, also thanks to its thickness.

Finally, the device does not modify the size of a container or the rear of a truck.

According to the variant shown in Figure 10, the L-shaped piece ends at its upper part by a plate arranged transversely so as to give a T shape 40 seen from the rear, the ends of which have a spacing preferably slightly less than the free space between the rods.

To avoid premature wear of the locking devices 9,30,31 by vibrations, a spring 41 maintains a constant pressure between the box and the entire mobile part.

We will now describe with reference to FIGS. 11 to 13, a third variant of the device of the invention.

In Figures 11 and 12, there is shown in perspective a parallelepiped box 50 made of cast metal, intended to be mounted as in the embodiment of Figures 1 and 2 in an opening in the rear cross member of a container or the loading platform of a truck and welded into it.

As seen in Figure 12, the box 50 has a housing 51 slightly flared in the side walls of which are formed cavities 52 for receiving locking members such as bolts 53 in one piece mobile 54, massive in the form of an angle or L having a vertical part 55 intended to bear simultaneously on the doors of a container or of a truck as described with reference to FIG. 1 and a horizontal part 56, intended to be engaged in the housing 51 of the box 50 and having a flaring complementary to that of said housing to facilitate its engagement In this one.

At its free end, the horizontal part 56 carries a actuated latch 58 by a lock 59, housed in the horizontal part, using a key intended to be introduced into an orifice 59a formed in the moving part 54, opposite the horizontal part 56.

The vertical part 55 has reinforcing ribs 60 coming of matter.

The latch 58 is fixed to the end of the horizontal part 56 by means of screws 62, for example of hexagon socket screws.

Advantageously, the latch 58 comprises, as shown in the Figure 13, a mechanism comprising an actuating member or disc 63 provided with two crank pins 64 for bolt drive 53.

To this end, the bolts 53 have tails 66 whose width is about half that of each bolt so that it fits one inside the other during the retraction of the bolts 53 in the housing of the latch 58.

In the tail 66 of each bolt 53 is formed a groove 68 of reception of a corresponding crankpin to allow during rotation of the lock, transform the rotational movement of each crankpin 64 around of the X-X axis of the lock in a simultaneous translation movement and in direction opposite of the bolts 53.

Of course, the operation of this device is the same as that devices described with reference to Figures 1 to 9.

The vertical part 55 of the moving part 54 can, as in the case in Figure 9 be bent inward to prevent maneuvering towards the top of a curtain closure.

The massive character of the moving part and the fact that the box is molded, gives the assembly thus formed, particularly mechanical resistance high.

In order to ensure the sealing of the mobile part 54, the orifice 59a of introduction of the key of the lock 59 can be closed by a threaded plug 70 provided a gasket 71, intended to be engaged by screwing in the orifice 59a provided with an additional thread 72. The plug 70 is connected to the part mobile 54 by a flexible link 74 such as a cable, a chain or the like.

Finally, the movable part 54 is provided with an orifice 75 for receiving a seal not shown which can also be passed, either in a fixed part container or truck body, either in a room secured to the door or one of the doors of it.

Although in the embodiments which have just been described, the invention applies to trucks or containers with double doors hinged, it applies equally to trucks or containers provided from one door to one leaf.

It then suffices to place the device according to the invention in an appropriate manner, for example near the part of the door opposite its hinges at level of its junction with its fixed frame.

Claims (13)

1. Anti-theft device for locking the opening of a container or truck comprising at least one door or a shutter, the locking device comprising means integral with the lower cross member, to take a movable part (10, 13; 54) provided with means for locking the door and a lockbolt operated by a lock blocking the movable part (10, 13; 54) in the means which take it, the said means which take the movable part consisting of a box (7; 50) fixed to the inside of the cross member and provided in its inside wall with at least one cavity (3; 52) for inserting a unit for locking the lockbolt (9; 17, 18; 30, 31; 53) and the movable part (10, 13; 54) comprising a part (11, 13; 56) which can slide right into the box (7; 50), the locking part (9; 17, 18; 30,31, 53) working in conjunction with the cavity (8; 52) and being controlled by a safety lock (15; 59), characterised in that it has two locking units (30, 31; 53) parallel with each other, and in that on its rear face the lock is provided with two crank pins (37, 38; 64), each engaging one of the locking units, each of these having a notch to impart to them two equal and horizontal movements in opposite directions.
2. Device according to Claim 1, characterised in that the locking device has an L-shaped part (10, 13; 54) comprising a vertical part (12; 55) supported on the said one at least door of the container or truck, to prevent its opening, and a horizontal pail (11, 13; 56) which can slide right into the box (7; 50), the assembly being contained within the width of the container or the rear of the truck and being unremovable after locking.
3. Device according to one of the Claims 1 or 2, characterised in that the box (50) and the part of the movable component which slides into it have complementary expanded shapes.
4. Device according to any of the Claims 1 to 3, characterised in that the movable part (11, 13) engaging in the box (7) has a first recess (26), preferably cylindrical, designed to take the lock (27) and drilled in the centreline of the front part of the movable component and two cylindrical recesses (28, 29) ending in the first recess and drilled in the side sections of the movable component, each to take a locking unit (30, 31) working in conjunction with a corresponding cavity (32, 33) drilled in each side wall of the box (7) and provided with a notch (34, 35) so as to allow manoeuvring of the locking unit (30, 31).
5. Device according to one of the Claims 2 to 4, characterised in that when the locking means are not used, reversal of the movable part enables the L-shaped part (10) to be directed downward to permit the trajectory of the said one at least door, or to be on standby when the container or the truck is not loaded.
6. Device according to any one of the Claims 1 to 6, characterised in that the end of the vertical part of the L-shaped component is curved inwards so as to be able to prevent upward manoeuvring of a shutter closure with a projecting or inset handle, and is located above the projecting handle or in the inset handle.
7. Device according to any one of the Claims 1 to 6, for locking a two-door opening fitted with basquill fastener bars, characterised in that the top part (12) of the L-shaped part (10) ends in a transversely arranged plate so as to give it a T-shape (40), rear view, the ends of which are preferably at a distance smaller than the free space between the basquill fastener bars.
8. Device according to any one of the Claims 1 to 7, characterised in that the movable part (10, 13) has on its rear face a spring (41) to maintain constant pressure between the movable part (10, 13) and the bottom of the box (7) so as to prevent premature wear due to vibrations of the lockbolts (30, 31)
9. Device according to one of the Claims 1 to 7, characterised in that the movable part (54) is a solid L-shaped component comprising a vertical part (55) intended to be supported on the said one at least container door or truck door, in such a way as to prevent its being opened, and a horizontal part (56) intended to slide into the box (50) and having at its free end a lockbolt (58) operated by a lock (59) housed in the horizontal part.
10. Device according to Claim 9, characterised in that the lockbolt (58) has a mechanism comprising an actuating unit (63) provided with two crank pins (64) for driving dead locks (53) which have shanks (66) which are about the same width as half the width of each dead lock (53), so as to fit one into the other when the dead locks retract into the lockbolt housing, each shank (66) having a groove (68) to take a corresponding crank pin (64), so that when the lock turns, the movement of rotation of each crank pin (64) around the axis (X-X) of the lock can be converted into a simultaneous linear movement in the opposite direction from the lock bolts (53).
11. Device according to one of the Claims 9 and 10, characterised in that the vertical part (55) of the movable part (54) has reinforcement grooves (60).
12. Device according to one of the Claims 9 to 11, characterised in that the lock (59) has an aperture for inserting a key, made in the movable part (54) opposite the horizontal part (56), a threaded plug (70) fitted with a seal (71) being designed to screw into the aperture (59a) which has complementary tapping (72), the said plug (70) being attached to the movable part (54) by a flexible connection (74).
13. Device according to one of the Claims 1 to 12, characterised in that the movable part (54) has an aperture (75) to take a seal intended to be passed on, either into a fixed part of the body of the container or truck, or into a component integral with its door or one of its doors.

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